Patents by Inventor Kouichirou Maeda

Kouichirou Maeda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12080892
    Abstract: Provided is a binder composition for an all-solid-state secondary battery with which it is possible to form a solid electrolyte-containing layer that can cause an all-solid-state secondary battery to display excellent high-temperature storage characteristics. The binder composition for an all-solid-state secondary battery contains an acrylic polymer and not less than 500 mass ppm and not more than 5,000 mass ppm of a coagulant relative to the acrylic polymer.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: September 3, 2024
    Assignee: ZEON CORPORATION
    Inventor: Kouichirou Maeda
  • Patent number: 12057583
    Abstract: Provided is a binder composition for an all-solid-state secondary battery with which it is possible to form a solid electrolyte-containing layer that can cause an all-solid-state secondary battery to display excellent high-temperature cycle characteristics. The binder composition for an all-solid-state secondary battery contains an acrylic polymer and not less than 500 mass ppm and not more than 20,000 mass ppm of a phosphoric acid ester emulsifier relative to the acrylic polymer.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: August 6, 2024
    Assignee: ZEON CORPORATION
    Inventors: Kouichirou Maeda, Naoki Yoshida
  • Patent number: 11884805
    Abstract: A sealant for an electrochemical device contains (A) a polyisobutylene polymer and (B) a conjugated diene polymer. The sealant contains the (A) polyisobutylene polymer in a proportion of more than 60 mass % and not more than 98 mass % and the (B) conjugated diene polymer in a proportion of not less than 2 mass % and less than 40 mass % relative to the total mass of the (A) polyisobutylene polymer and the (B) conjugated diene polymer.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: January 30, 2024
    Assignee: ZEON CORPORATION
    Inventor: Kouichirou Maeda
  • Publication number: 20230272248
    Abstract: An adhesive agent for a battery containing a sulfide-based solid electrolyte, the adhesive agent including a metal compound and a resin, wherein the metal compound is contained in an amount of 1% by weight or more and less than 60% by weight relative to a total weight of the metal compound and the resin. The metal compound is preferably a polyvalent metal salt, and more preferably a copper compound. An adhesive layered body for a battery including a sulfide-based solid electrolyte, the adhesive layered body including a substrate and a layer of the adhesive agent for a battery, the layer being provided on the substrate.
    Type: Application
    Filed: July 9, 2021
    Publication date: August 31, 2023
    Applicant: ZEON CORPORATION
    Inventor: Kouichirou MAEDA
  • Publication number: 20230223627
    Abstract: Provided is a sealant for a non-aqueous electrolyte solution battery that can form a sealant layer having excellent adhesiveness with respect to a metal surface. The sealant for a non-aqueous electrolyte solution battery contains a non-polar polymer and a nitrogen-containing heterocyclic compound. The proportional content of the nitrogen-containing heterocyclic compound is preferably not less than 0.01 mass % and not more than 5 mass %.
    Type: Application
    Filed: June 22, 2021
    Publication date: July 13, 2023
    Applicant: ZEON CORPORATION
    Inventor: Kouichirou MAEDA
  • Patent number: 11649369
    Abstract: Disclosed is a nonaqueous electrolyte battery using an aqueous sealant composition. The aqueous sealant composition comprises an aqueous dispersion in an amount of 70 mass % or more and 97 mass % or less by mass of solid content, wherein the aqueous dispersion comprises an olefinic polymer as a main component, and a water-soluble polymer in an amount of 3 mass % or more and 30 mass % or less by mass of solid content. The aqueous dispersion comprises an olefinic polymer as a main component. The olefinic polymer is a modified olefinic polymer. The modified olefinic polymer is a partial copolymer of a polymer selected from a group consisting of polyethylene, polypropylene, polybutene and ethylene-propylene polymers, and a polymerizable unsaturated organic acid selected from a group consisting of maleic anhydride, acrylic acid, methacrylic acid and esters thereof.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: May 16, 2023
    Assignee: ZEON CORPORATION
    Inventor: Kouichirou Maeda
  • Patent number: 11613098
    Abstract: Provided is a laminate for a non-aqueous secondary battery that, in transfer of a functional layer onto a substrate for a non-aqueous secondary battery, enables easy peeling of the functional layer from a releasable substrate while also enabling good adhesion of the functional layer to the substrate for a non-aqueous secondary battery. The laminate for a non-aqueous secondary battery includes a releasable substrate and a functional layer containing a binder. The functional layer is formed in a dotted form on a surface A at one side of the releasable substrate.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: March 28, 2023
    Assignee: ZEON CORPORATION
    Inventors: Yasuhiro Wakizaka, Masanobu Sato, Hiroshi Koga, Kouichirou Maeda
  • Patent number: 11557766
    Abstract: Provided are a binder composition for an all-solid-state secondary battery with which it is possible to obtain an all-solid-state secondary battery that has good battery characteristics and for which processability during all-solid-state secondary battery production is excellent, a slurry composition for an all-solid-state secondary battery that contains this binder composition for an all-solid-state secondary battery, a functional layer for an all-solid-state secondary battery that is formed from this slurry composition for an all-solid-state secondary battery, and an all-solid-state secondary battery that includes this functional layer for an all-solid-state secondary battery. The binder composition for an all-solid-state secondary battery contains a polymer, an unsaturated acid metal salt monomer, and a solvent. The unsaturated acid metal salt monomer includes a divalent metal.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: January 17, 2023
    Assignee: ZEON CORPORATION
    Inventor: Kouichirou Maeda
  • Publication number: 20220186013
    Abstract: A sealant for an electrochemical device contains (A) a polyisobutylene polymer and (B) a conjugated diene polymer. The sealant contains the (A) polyisobutylene polymer in a proportion of more than 60 mass % and not more than 98 mass % and the (B) conjugated diene polymer in a proportion of not less than 2 mass % and less than 40 mass % relative to the total mass of the (A) polyisobutylene polymer and the (B) conjugated diene polymer.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 16, 2022
    Applicant: ZEON CORPORATION
    Inventor: Kouichirou MAEDA
  • Publication number: 20220153967
    Abstract: A sealant for an electrochemical device contains (A) a conjugated diene polymer and (B) a polyisobutylene polymer. The sealant contains the (A) conjugated diene polymer in a proportion of more than 80 mass % and not more than 98 mass % and the (B) polyisobutylene polymer in a proportion of not less than 2 mass % and less than 20 mass % relative to the total mass of the (A) conjugated diene polymer and the (B) polyisobutylene polymer.
    Type: Application
    Filed: March 5, 2020
    Publication date: May 19, 2022
    Applicant: ZEON CORPORATION
    Inventor: Kouichirou MAEDA
  • Publication number: 20220037664
    Abstract: Provided is a binder composition for an all-solid-state secondary battery with which it is possible to form a solid electrolyte-containing layer that can cause an all-solid-state secondary battery to display excellent high-temperature storage characteristics. The binder composition for an all-solid-state secondary battery contains an acrylic polymer and not less than 500 mass ppm and not more than 5,000 mass ppm of a coagulant relative to the acrylic polymer.
    Type: Application
    Filed: September 20, 2019
    Publication date: February 3, 2022
    Applicant: ZEON CORPORATION
    Inventor: Kouichirou MAEDA
  • Publication number: 20210408545
    Abstract: Provided is a binder composition for an all-solid-state secondary battery with which it is possible to form a solid electrolyte-containing layer that can cause an all-solid-state secondary battery to display excellent high-temperature cycle characteristics. The binder composition for an all-solid-state secondary battery contains an acrylic polymer and not less than 500 mass ppm and not more than 20,000 mass ppm of a phosphoric acid ester emulsifier relative to the acrylic polymer.
    Type: Application
    Filed: September 20, 2019
    Publication date: December 30, 2021
    Applicant: ZEON CORPORATION
    Inventors: Kouichirou MAEDA, Naoki YOSHIDA
  • Publication number: 20210344043
    Abstract: Provided is a binder composition for an all-solid-state secondary battery with which it is possible to produce a slurry composition for a solid electrolyte-containing layer having good leveling performance and to form a solid electrolyte-containing layer that can cause an all-solid-state secondary battery to display excellent output characteristics. The binder composition for an all-solid-state secondary battery contains a first polymer, a second polymer, and a solvent. The first polymer is poorly soluble in the solvent. The second polymer includes a nitrile group-containing monomer unit and is highly soluble in the solvent.
    Type: Application
    Filed: August 22, 2019
    Publication date: November 4, 2021
    Applicant: ZEON CORPORATION
    Inventors: Yusaku MATSUO, Taku MATSUMURA, Kouichirou MAEDA
  • Publication number: 20210328294
    Abstract: Disclosed is a nonaqueous electrolyte battery using an aqueous sealant composition. The aqueous sealant composition comprises an aqueous dispersion in an amount of 70 mass % or more and 97 mass % or less by mass of solid content, wherein the aqueous dispersion comprises an olefinic polymer as a main component, and a water-soluble polymer in an amount of 3 mass % or more and 30 mass % or less by mass of solid content. The aqueous dispersion comprises an olefinic polymer as a main component. The olefinic polymer is a modified olefinic polymer. The modified olefinic polymer is a partial copolymer of a polymer selected from a group consisting of polyethylene, polypropylene, polybutene and ethylene-propylene polymers, and a polymerizable unsaturated organic acid selected from a group consisting of maleic anhydride, acrylic acid, methacrylic acid and esters thereof.
    Type: Application
    Filed: June 28, 2021
    Publication date: October 21, 2021
    Applicant: ZEON CORPORATION
    Inventor: Kouichirou MAEDA
  • Patent number: 11145866
    Abstract: Provided is a binder composition for an all-solid-state battery with which an all-solid-state battery having excellent capacity characteristics can be obtained. The binder composition contains: a copolymer including an alkylene structural unit and a nitrile group-containing monomer unit; and an organic solvent having a boiling point of 100° C. or higher. The copolymer includes the nitrile group-containing monomer unit with a percentage content of at least 10 mass % and not more than 30 mass % and has an iodine value of at least 40 mg/100 mg and not more than 130 mg/100 mg.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: October 12, 2021
    Assignee: ZEON CORPORATION
    Inventors: Kouichirou Maeda, Hiroki Oguro
  • Patent number: 11038158
    Abstract: The present invention relates to a method for manufacturing a binder composition for a lithium-ion secondary battery electrode. The method comprises a step of dissolving a polymer having a melting point in a range of 50° C. to 150° C. in a monomer and obtaining a monomer solution in which the polymer is dissolved in the monomer; and a step of obtaining a composite polymer particle by subjecting the monomer solution to suspension polymerization or emulsion polymerization in an aqueous medium. The binder composition contains the composite polymer particle.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: June 15, 2021
    Assignee: ZEON CORPORATION
    Inventors: Azusa Masuda, Hiroki Oguro, Kouichirou Maeda
  • Publication number: 20210167389
    Abstract: Provided are a binder composition for an all-solid-state secondary battery with which it is possible to obtain an all-solid-state secondary battery that has good battery characteristics and for which processability during all-solid-state secondary battery production is excellent, a slurry composition for an all-solid-state secondary battery that contains this binder composition for an all-solid-state secondary battery, a functional layer for an all-solid-state secondary battery that is formed from this slurry composition for an all-solid-state secondary battery, and an all-solid-state secondary battery that includes this functional layer for an all-solid-state secondary battery. The binder composition for an all-solid-state secondary battery contains a polymer, an unsaturated acid metal salt monomer, and a solvent. The unsaturated acid metal salt monomer includes a divalent metal.
    Type: Application
    Filed: December 4, 2018
    Publication date: June 3, 2021
    Applicant: ZEON CORPORATION
    Inventor: Kouichirou MAEDA
  • Patent number: 10985401
    Abstract: Provided are a binder composition for a solid electrolyte battery and a slurry composition for a solid electrolyte battery that have excellent processability and can cause a solid electrolyte battery to display excellent battery characteristics. The binder composition contains a particulate polymer of a copolymer including an acrylate monomer unit and an aromatic monomer unit, alkyl-modified cellulose represented by formula (I), and an organic solvent. In formula (I), R1, R2, and R3 each indicate a hydrogen atom or an alkyl group having a carbon number of at least 1 and not more than 4. At least two of R1, R2, and R3 are alkyl groups having a carbon number of at least 2 and not more than 4 in 50 mol % or more of all repeating units. Also, n indicates a natural number.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: April 20, 2021
    Assignee: ZEON CORPORATION
    Inventor: Kouichirou Maeda
  • Patent number: 10862128
    Abstract: Provided is a binder composition for a solid electrolyte battery having excellent processability in solid electrolyte battery production and with which a solid electrolyte battery having excellent battery performance can be obtained. The binder composition for a solid electrolyte battery contains a particulate polymer having a core-shell structure and an organic solvent. A mass ratio of content of a polymer forming a core portion of the particulate polymer relative to content of a polymer forming a shell portion of the particulate polymer (i.e., a ratio of “polymer forming core portion/polymer forming shell portion”) is 1/0.3 to 1/5.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: December 8, 2020
    Assignee: ZEON CORPORATION
    Inventors: Kouichirou Maeda, Hiroki Oguro
  • Publication number: 20200331234
    Abstract: Provided is a laminate for a non-aqueous secondary battery that, in transfer of a functional layer onto a substrate for a non-aqueous secondary battery, enables easy peeling of the functional layer from a releasable substrate while also enabling good adhesion of the functional layer to the substrate for a non-aqueous secondary battery. The laminate for a non-aqueous secondary battery includes a releasable substrate and a functional layer containing a binder. The functional layer is formed in a dotted form on a surface A at one side of the releasable substrate.
    Type: Application
    Filed: August 14, 2018
    Publication date: October 22, 2020
    Applicant: ZEON CORPORATION
    Inventors: Yasuhiro WAKIZAKA, Masanobu SATO, Hiroshi KOGA, Kouichirou MAEDA